Prosoco R-Guard Fast Flash Liquid Flashing Membrane
PROSOCO R-Guard® FastFlash® flashing membrane is a top choice for building experts.
All-in-one waterproofing, adhesive, and detailing from a single-component Silyl-Terminated-Polymer (STP).
Flashing membrane is easy to spread, roll, or gun in order to generate durable, seamless barriers.
Saves time and effort by avoiding the need for joint reinforcing tapes.
Easy application and single-component design delivers quality and convenience.
Can be installed with most sealants and waterproofing/air barriers under a variety of weather conditions.
Solvent-, isocyanate-, and phthalate-free composition provides safe results free from staining, yellowing, or shrinkage.
This breathable flashing membrane from Prosoco is ideal for building-wide air barrier systems as well as a complement for other barrier components. Apply to sheathing joints, inside corners, and outside corners. You can quickly and easily install through-wall sheet flashing such as R-Guard’s SS ThruWall to save time and effort. Buy from Masonry Direct in gun-grade or roller-grade versions to best meet your professional needs. Fast Flash can be exposed to UV rays and weather for up to 12 months. Purchase in bulk from our masonry supply store online to save even more on your project costs!
Available in 20-ounce sausage, 29-ounce cartridge, or 2-gallon or 5-gallon bucket.
Fast Flash allows for same-day installation of wall assemblies, waterproofing, and air barrier systems.
Not intended for use as a structural sealant or in locations below grade or immersed in water.